Thread: Green Stone from UK, possibly a Llyn Idwal?

Dear SRP community,

today I've came accross a green stone, comming from UK.
The stone has been used with oil before.
Its surface looks quite coarse has also lots of black small dots but it's surface is very smooth to the touch (after lapping )
Under DMT plate it creates quickly a fine white-greenisch slurry, the releasing speed i can compare to thuringian hones.
First very short honing on slurry shows it is working quite fine, I guess it can be a prefinisher, may be I can even finish on it...

Size: 23cm x 57mm x 17mm

Here are some pictures

The front side dry:


The front side dry:


The front side whet:


Looking from abover to the whet surface some whitish curls shows up:


The back side is indeed rough:


sides of the stone has some cracks


here are some inclusions at 160x magnification (Pics are taken by cell phone through a kids microscope)



Would realy appreciate you could help me identifying this boy

Thanks a lot in advance

Regards

Philipp